OLED device with anode of silver nanowire and fabrication method thereof, display substrate

• US 9,716,244 B2
• Filed: 06/17/2015
• Issued: 07/25/2017
• Est. Priority Date: 02/10/2015
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd., Jeijing BOE Optoelectronics Technology Company Limited
• Inventors: Yang, Jiuxia, Liu, Jiantao, Bai, Feng
• Primary Examiner(s): DIALLO, MAMADOU L
• Application Number:
  US14/741,720
• Publication Number:
  US 20160233450A1
• Time in Patent Office: 769 Days
• CPC Class Codes: H10K 50/81 Anodes
• CPC Class Codes: H10K 59/8051 Anodes
• CPC Class Codes: H10K 59/876 comprising a resonant cavity structure, e.g. Bragg reflector pair
• CPC Class Codes: H10K 71/621 Providing a shape to conductive layers, e.g. patterning or selective deposition

Abstract

An OLED device and a fabrication method thereof, a display substrate and a display device are provided. The OLED device comprises: a base substrate, and an anode, an organic light emitting layer and a cathode which are sequentially stacked on the base substrate. The anode includes a silver nanowire material.

Claims

1. An organic light emitting diode (OLED) device, comprising:

a base substrate; and

an anode, an organic light emitting layer, and a cathode which are sequentially stacked on the base substrate,

wherein the anode includes a silver nanowire material and is fabricated by forming a pattern of a silver nanowire film and drying and curing the silver nanowire film through a vacuum baking process in a vacuum oven for 30 seconds˜

30 minutes at a temperature of 20˜

50°

C. and a hardening process for 15˜

60 minutes at a temperature of 80˜

250°

C.

2. The OLED device according to claim 1, further comprising a protective layer, the protective layer being formed on the anode, and the protective layer including a conductive polymer material.

3. The OLED device according to claim 2, wherein the conductive polymer material includes at least one selected from a group consisted of polyacetylene, polythiophene, polypyrrole, polyaniline, polyphenylene, polyphenylene acetylene, and polydiacetylene.

4. The OLED device according to claim 2, further comprising a hole injection layer and a hole transport layer disposed between the anode and the organic light emitting layer, and an electron transport layer and an electron injection layer disposed between the organic light emitting layer and the cathode.

5. The OLED device according to claim 4, wherein the protective layer is disposed between the anode and the hole injection layer.

6. A display substrate, comprising an organic light emitting diode (OLED) device, the OLED device comprising:

a base substrate; and

an anode, an organic light emitting layer, and a cathode which are sequentially stacked on the base substrate,

wherein the anode includes a silver nanowire material and is fabricated by forming a pattern of a silver nanowire film and drying and curing the silver nanowire film through a vacuum baking process in a vacuum oven for 30 seconds˜

30 minutes at a temperature of 20˜

50°

C. and a hardening process for 15˜

60 minutes at a temperature of 80˜

250°

C.

7. The display substrate according to claim 6, wherein the OLED device further comprises a protective layer, the protective layer being formed on the anode, and the protective layer including a conductive polymer material.

8. The display substrate according to claim 7, wherein the conductive polymer material includes at least one selected from a group consisted of polyacetylene, polythiophene, polypyrrole, polyaniline, polyphenylene, polyphenylene acetylene, and polydiacetylene.

9. The display substrate according to claim 7, further comprising a hole injection layer and a hole transport layer disposed between the anode and the organic light emitting layer, and an electron transport layer and an electron injection layer disposed between the organic light emitting layer and the cathode.

10. The display substrate according to claim 9, wherein the protective layer is disposed between the anode and the hole injection layer.